I see that this lens has Manual focus capability. Does anyone know how the manual focus operates? Slip-ring or switch?
17380
It has that standard AF/MF switch on the side. Set to MF and you adjust the focus with the ring. It's like the other lenses I've used from Canon and others. I'm not sure what slip-ring would be, unless you mean it focuses and then you change it. I haven't tried that.
2012320
Yes. Zoom and Focus are manual with the inner ring for the later. It s a little bit to freaky not so gradual control. Its endless so no physical connection with lens I guess.
396428
Yes, it is a manual lens but its not hard to use at all. You have to manually set the focus (easy enough) but you can still use the cameras internal meter to control exposure. Also, read your cameras owners manual. There are some neat tools available to make using this lens a little easier.
2225969
not sure what the question is . Yes it has a auto and manual focus switch. If on auto on my A77 I can't override the focus for final adjustment of focus while still on auto focus. The camera will bring the focus back to what it wants unless I press the override button on the camera, or switch the lens to manual. Hope this helps
376020
Yes, this is a totally manual lens. You will need to set your camera to manual. Being very wide angle the focus is very fir giving. I'm very impressed with how sharp it is.
888898
As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be. (But I always use a tripod if I can... no kidding it's very heavy!) Hope this helps! -ed
542809
Only in manual mode. I really haven't had a lot of use for, or success with this lens.
2166936
There is a stabilization on and off switch on the lenses as well as a auto/manual focus
1126619
The lens itself must have manual aperture. I returned this.model for a.more.expensive one with five settings.
201804
The lens has no focus switch - your camera probably has one and it will control the lens. Manual focus during video recording depends on whether your camera allows this.
1070793
This lens is manual focus and manual aperture. So it won't AF or automatically adjust the aperture. It works in full manual mode very nicely but that may not be what you want to do.
1235784
Hi, the manual focus ring is mechanical, however, in has what we cann an internal focusing - only the middle groups of the optical system move to achieve focus so the overall length of the lens does not change. -Ely
1518947
I found it to be very slow focusing at distances of less than 10 feet, since the depth of field is so wide and the camera (Canon T3i) gets confused. Manual focus works better in those situations, and is quickly changed with the forward/reverse clutch of the focusing ring itself. Tamron lenses have a very tiny focus mode switch to hunt for.
57274
It's working fine with the autofocus mode on your lens, would also work with the manual focus but you would have to preset the focus on the lens. Michael
2006130
Yes you can manual focus. No manual focus switch on the lens but just select manual focus from the menu. This can be assigned to a Custom Key or the Function button (which displays a quick menu which is user configurable). The 24-70 performs well on the A7s.
2220602
The focus ring controls a focus motor rather than using a direct mechanical system and has to be activated using the camera itself. I would think this lens cannot be used without being completely linked to the camera.
201799
What Barry said. Ring spins infinitely however, so it's less than ideal for manual focus.